'cause I don't need an additional screen and I like the feature, to know what is on my button in text and color... It's really handy to assign a go or flash funtion to the command keys. Why not make a wing with OLEDs and hardware buttons only...
I'm working quite a lot with inhibitive masters. So I can fire toggles or flashes through this kind of wing and control the output with my masters. That's what I'm doing with 12 command Keys now.